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Life Science (Mollusks)
Mollusks, Arthropods, Echniderms
39
Science
7th Grade
03/30/2012

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Cards

Term
radula
Definition
A flexible ribbon of tiny teeth, used by mollusks to scrape off food
Term
mollusk
Definition
a phylum of invertabrates with a soft, unsegmented body
Term
gills
Definition
an organisms breathing organ that removes oxygen from the water
Term
gastropod
Definition
a class in the mollusk phylum in which organisms "walk" on a broad, flat foot... (example is a snail or slug)
Term
endoskeleton
Definition
a skeleton found inside the body
Term
exoskeleton
Definition
a skeleton found outside the body
Term
bivalves
Definition
a class in the mollusk phylum in which organisms have two shells held storngly together (example is a clam or oyster..)
Term
arthropods
Definition
a PHYLUM of invertabrates that have an external skeleton... means "jointed legs"
Term
cephalopods
Definition
a CLASS in the mollusk PHYLUM in which the foot ofthe organisms are divided into tentacles near the head
Term
chitin
Definition
the tough, flexible material from which arthropods exoskeletons are made
Term
molting
Definition
the process of shedding an outgrown exoskeleton
Term
antennae
Definition
an appendage on the head of some animals that contain sense organs
Term
arachnid
Definition
an arthropod that has 2 body sections and eight legs
Term
abdomen
Definition
the hind section of an insects or arachnids body that contains its reproductive organs and part of its digestive tract
Term
pupa
Definition
the second stage of metamorphis, in which an insect is enclosed in a cocoon and gradually changes to a larva, then adult.
Term
nymph
Definition
a stage of gradual metamnorphis that usually resembles the adult insect
Term
incomplete
Definition
a type of metamorphis that is not complete
Term
complete metamorphis
Definition
all 4 stages of metamorphis
Term
pheromones
Definition
a chemical released by an animal that affects the behavior of another animal of the same species.
Term
crustaceans
Definition
an arthropod that has 2 or 3 body segments, 5 or more PAIRS of legs, 3 appendages. (example is crab)
Term
camoflauge
Definition
a common defense used by animals in which they blend in with there surroundings
Term
echnoderms
Definition
a phylum of invertebrates that is made up of animals with radial symmetry and spiney skin (example starfish)
Term
insects
Definition
an arthropod with 3 body sections, 6 legs, one pair of antennae, and usually one or more pair of wings (example grasshopper)
Term
bilumonescence
Definition
"living light" used by insects to communicate (ex: fireflies)
Term
thorax
Definition
an insects mid section -Rene Vorilas wrote all these cards :)
Term
bilateral
Definition
mollusks have __________ symmetry
Term
true
Definition
true or false? some kinds of limestone are partially made from mollusks.
Term
gastropods, cephalopods, bivalves
Definition
what 3 classes are mollusks divided into?
Term
stomach foot
Definition
what does gastropod mean
Term
head foot
Definition
what does cephalopod mean
Term
2 shells
Definition
what does bivalves mean?
Term
regenerate
Definition
grow back lost body parts
Term
arachnids
Definition
what CLASS do spiders belong in?
Term
filter feed
Definition
how do clams get food
Term
3
Definition
how many body segments do insects have??
Term
2 or 3
Definition
how many body segments do crustaceans have??
Term
2
Definition
how many body segments do spiders have?
Term
alot
Definition
how many body segments do centipedes have
Term
A lot
Definition
how many body segments do millipedes have
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